September weather forecastRaha, Indonesia
September
Weather in September
September, the first month of the spring in Raha, is also a moderately hot month, with an average temperature varying between 28.2°C (82.8°F) and 25.3°C (77.5°F).Temperature
The average high-temperature during September registers at a still moderately hot 28.2°C (82.8°F), maintaining a close resemblance to the previous month. Raha's nights throughout September are marked by an average low temperature of 25.3°C (77.5°F), a minor drop from the day's high.Heat index
The heat index for September is appraised at a hot 32°C (89.6°F). With unrelenting exposure and activity, one might experience exhaustion, leading to potential heat cramps.Factoring in the heat index, values are geared towards shaded areas with light breezes. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
The average relative humidity in September in Raha, Indonesia, is 76%.Rainfall
In Raha, during September, the rain falls for 9.5 days and regularly aggregates up to 48mm (1.89") of precipitation. Throughout the year, there are 244.6 rainfall days, and 1731mm (68.15") of precipitation is accumulated.Daylight
In Raha, the average length of the day in September is 12h and 5min.On the first day of the month, sunrise is at 05:48 and sunset at 17:49. On the last day of September, in Raha, sunrise is at 05:34 and sunset at 17:43 WITA.
Sunshine
The average sunshine in September in Raha is 9.3h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in Raha, Indonesia. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Raha. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: A maximum UV index of 7 in September translates into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Raha, Indonesia
- Average high temperature in September: 28.2°C
The warmest month (with the highest average high temperature) is November (29.9°C).
The months with the lowest average high temperature are July and August (27.5°C).
- Average low temperature in September: 25.3°C
The month with the highest average low temperature is December (27.3°C).
The coldest month (with the lowest average low temperature) is August (24.9°C).
Average pressure in September
Raha, Indonesia
- Average pressure in September: 1011.2mbar
The month with the highest atmospheric pressure is August (1011.5mbar).
The month with the lowest atmospheric pressure is December (1007.6mbar).
Average wind speed in September
Raha, Indonesia
- Average wind speed in September: 14.3km/h
The windiest month (with the highest average wind speed) is July (17.1km/h).
The calmest month (with the lowest average wind speed) is March (9.8km/h).
Average humidity in September
Raha, Indonesia
- Average humidity in September: 76%
The months with the highest relative humidity are May and June (79%).
The months with the lowest relative humidity are October, November and December (75%).
Average rainfall in September
Raha, Indonesia
- Average rainfall in September: 48mm
The wettest month (with the highest rainfall) is April (230mm).
The driest month (with the least rainfall) is August (23mm).
Average rainfall days in September
Raha, Indonesia
- Average rainfall days in September: 9.5 days
The months with the highest number of rainy days are January and December (27.3 days).
The month with the least rainy days is August (8.8 days).
Average daylight in September /
Average sunshine in September
Raha, Indonesia
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 48min).
- Average sunshine in September: 9h and 18min
The month with the most sunshine is February (Average sunshine: 10h and 18min).
The month with the least sunshine is July (Average sunshine: 6h and 6min).
Average sunshine days in September
Raha, Indonesia
- Average sunshine days in September: 18 days
The month with the most sunshine days is September (18 days).
The month with the least sunshine days is February (2 days).
Average UV index in September
Raha, Indonesia
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Raha, Indonesia
- Average cloud cover in September: 24
The months with the most cloud cover are May and June (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 21).
Average visibility in September
Raha, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are February, March, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, April and May (9km).





